First off I would like say what a great site this is.I watched this forum for a few months now and going to dive into the motorbicycle world.I no what china girl kit i am going to use for my Huffy mountain bike, but also had a brain storm.What would these motors be like for making into a outboard mud motor for duck boat or other small boat.I know they use weedeaters and convert them so these should work given the gear ratio is not to low coming from the crank to clutch.What is the ratio on these motors? They would almost be ideal for that kind of application .